aboutsummaryrefslogtreecommitdiff
path: root/ui.c
diff options
context:
space:
mode:
Diffstat (limited to 'ui.c')
-rw-r--r--ui.c116
1 files changed, 88 insertions, 28 deletions
diff --git a/ui.c b/ui.c
index f114a41..9ac6965 100644
--- a/ui.c
+++ b/ui.c
@@ -11,12 +11,19 @@
#include <ncurses.h>
-#define LINE_LEN 0x10
+#include "format.h"
+
+#define LINE_LEN 0x10 /* Number of bytes in a line */
+
+#define LINENO_DIGITS 8 /* length of line numbers */
+#define LINENO_WIDTH (LINENO_DIGITS + 2) /* for padding */
+
+#define INFO_HEIGHT 10 /* Height of the info panel */
// int screen_height, screen_width;
struct screen {
- WINDOW *lineno, *hex, *chr;
+ WINDOW *lineno, *hex, *chr, *info;
int top_address;
void *mem;
size_t mem_len;
@@ -32,47 +39,81 @@ void draw_lines() {
}
}
-void draw_hex() {
+void draw_hex(struct segment *current) {
+
for (int y = 0; y < LINES; y++) {
for (int x = 0; x < LINE_LEN; x++) {
+ size_t addr = screen.top_address + y * LINE_LEN + x;
+ if (addr < 0 || addr >= screen.mem_len) continue;
+ if (current->start <= addr && addr < current->end) {
+ wattron(screen.hex, COLOR_PAIR(1));
+ }
if (screen.hy == y && screen.hx == x) {
wattron(screen.hex, A_REVERSE);
}
mvwprintw(screen.hex, y, x * 2 + (x/2), "%02x",
- 0xFF & ((char*) screen.mem)[screen.top_address + y * LINE_LEN + x]);
+ 0xFF & ((char*) screen.mem)[addr]);
if (screen.hy == y && screen.hx == x) {
wattroff(screen.hex, A_REVERSE);
}
+ if (current->start <= addr && addr < current->end) {
+ wattroff(screen.hex, COLOR_PAIR(1));
+ }
}
wrefresh(screen.hex);
}
}
-void draw_chr() {
+void draw_chr(struct segment *current) {
for (int y = 0; y < LINES; y++) {
for (int x = 0; x < LINE_LEN; x++) {
+ size_t addr = screen.top_address + y * LINE_LEN + x;
+ if (addr < 0 || addr >= screen.mem_len) continue;
+ if (current->start <= addr && addr < current->end) {
+ wattron(screen.chr, COLOR_PAIR(1));
+ }
if (screen.hy == y && screen.hx == x) {
wattron(screen.chr, A_REVERSE);
}
- char c = ((char*) screen.mem)[screen.top_address + y * LINE_LEN + x];
+ char c = ((char*) screen.mem)[addr];
mvwprintw(screen.chr, y, x, "%c", isprint(c) ? c : '.');
if (screen.hy == y && screen.hx == x) {
wattroff(screen.chr, A_REVERSE);
}
+ if (current->start <= addr && addr < current->end) {
+ wattroff(screen.chr, COLOR_PAIR(1));
+ }
}
wrefresh(screen.chr);
}
}
+void draw_info(struct segment *current) {
+ werase(screen.info);
+ wmove(screen.info, 0, 0);
+ whline(screen.info, '-', COLS);
+
+ // size_t mem_addr = screen.top_address + screen.hy * LINE_LEN + screen.hx;
+ mvwprintw(screen.info, 1, 0, current->description);
+
+
+ wrefresh(screen.info);
+}
+
void draw_screen() {
+ struct segment current = get_segment(
+ screen.mem,
+ screen.mem_len,
+ screen.top_address + screen.hy * LINE_LEN + screen.hx);
draw_lines();
- draw_hex();
- draw_chr();
+ draw_hex(&current);
+ draw_chr(&current);
+ draw_info(&current);
/* TODO end at end of file */
}
-int main() {
+int main(int argc, char *argv[]) {
/* Terminal supporting mouse movements */
setenv("TERM", "xterm-1003", true);
@@ -84,16 +125,28 @@ int main() {
curs_set(0);
start_color();
-
- // getmaxyx(stdscr, screen_height, screen_width);
+ init_pair(1, COLOR_RED, COLOR_BLACK);
keypad(stdscr, true);
- screen.lineno = newwin(0, 10, 0, 0);
- screen.hex = newwin(0, (int) ceil(LINE_LEN * 2.5), 0, 10);
- screen.chr = newwin(0, LINE_LEN, 0, 10 + (int) ceil(LINE_LEN * 2.5));
+ const int HEX_WIDTH = (int) ceil(LINE_LEN * 2.5);
+
+ {
+ int h = LINES - INFO_HEIGHT;
+ screen.lineno = newwin(h, LINENO_WIDTH, 0, 0);
+ screen.hex = newwin(h, HEX_WIDTH, 0, LINENO_WIDTH);
+ screen.chr = newwin(h, LINE_LEN, 0, LINENO_WIDTH + HEX_WIDTH);
+ screen.info = newwin(0, 0, h, 0);
+ }
+
+ char *filename;
+ if (argc == 1) {
+ filename = "payload.gz";
+ } else {
+ filename = argv[1];
+ }
- int fd = open("payload.gz", O_RDONLY);
+ int fd = open(filename, O_RDONLY);
struct stat statbuf;
if (fstat(fd, &statbuf) == -1) {
goto end;
@@ -110,11 +163,11 @@ int main() {
int ch;
MEVENT event;
- while (1) {
+ while (true) {
ch = wgetch(stdscr);
switch (ch) {
case KEY_MOUSE:
- wmove(stdscr, 0, 0);
+ // wmove(stdscr, 0, 0);
switch (getmouse(&event)) {
case OK:
if (event.bstate & BUTTON4_PRESSED) {
@@ -124,12 +177,17 @@ int main() {
screen.top_address += LINE_LEN;
}
- if (event.x >= 10 && event.x < 10 + (int) ceil(LINE_LEN * 2.5)) {
- screen.hx = (int) ((event.x - 10) / 2.5);
- screen.hy = event.y;
- } else if (event.x >= 10 + (int) ceil(LINE_LEN * 2.5) && event.x < (int) ceil(LINE_LEN * 2.5) + 10 + LINE_LEN) {
- screen.hx = event.x - (10 + (int) ceil(LINE_LEN * 2.5));
- screen.hy = event.y;
+ if (event.y >= 0 && event.y < LINES - INFO_HEIGHT) {
+ if (event.x >= LINENO_WIDTH && event.x < LINENO_WIDTH + HEX_WIDTH) {
+ screen.hx = (int) ((event.x - LINENO_WIDTH) / 2.5);
+ screen.hy = event.y;
+ } else if (event.x >= LINENO_WIDTH + HEX_WIDTH && event.x < HEX_WIDTH + LINENO_WIDTH + LINE_LEN) {
+ screen.hx = event.x - (LINENO_WIDTH + HEX_WIDTH);
+ screen.hy = event.y;
+ } else {
+ screen.hx = -1;
+ screen.hy = -1;
+ }
} else {
screen.hx = -1;
screen.hy = -1;
@@ -141,16 +199,17 @@ int main() {
// wprintw(win, "err");
break;
}
+
draw_screen();
refresh();
break;
case KEY_RESIZE:
- wresize(screen.lineno, LINES, 0);
- wresize(screen.hex, LINES, 0);
- wresize(screen.chr, LINES, 0);
+ wresize(screen.lineno, LINES - INFO_HEIGHT, 0);
+ wresize(screen.hex, LINES - INFO_HEIGHT, 0);
+ wresize(screen.chr, LINES - INFO_HEIGHT, 0);
draw_screen();
- mvprintw(0, 0, "%ix%i", COLS, LINES);
- refresh();
+ // mvprintw(0, 0, "%ix%i", COLS, LINES);
+ // refresh();
break;
case KEY_ENTER:
goto end;
@@ -162,6 +221,7 @@ end:
delwin(screen.lineno);
delwin(screen.hex);
delwin(screen.chr);
+ delwin(screen.info);
endwin();
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 18:19:00 +0200